11

SY89532/33L

Micrel, Inc.

M9999-110405

hbwhelp@micrel.com or (408) 955-1690

Rate

FSEL

MSEL

XTAL

Protocol

(MHz)

(Post Divider)

(Feedback Div.)

(MHz)

FOUT

PCI

33

18

36

16.67

33

Fast Ethernet

100

6

40

15

100

1/8 FC

133

6

52

15.36

133

ESCON

200

4

50

16

200

SUGGESTED SELECTIONS FOR SPECIFIC CUSTOMER APPLICATIONS

Notes:

1. 600MHz < (XTAL x MSEL) < 1000MHz.

2. Where two settings provide the user with the identical desired frequency, the setting with the higher input reference frequency (and lower feedback

divider) will usually have lower output jitter. However, the reference input frequency, as well as the VCO frequency, must be kept within their

respective ranges.

M3

M2

M1

M0

0

0

0

0

Ref x 34

0

0

0

1

Ref x 36

0

0

1

0

Ref x 38

0

0

1

1

Ref x 40

0

1

0

0

Ref x 42

0

1

0

1

Ref x 44

0

1

1

0

Ref x 48

0

1

1

1

Ref x 50

1

0

0

0

Ref x 52

1

0

0

1

Ref x 54

1

0

1

0

Ref x 56

1

0

1

1

Ref x 60

1

1

1

0

Ref x 70

1

1

1

1

Ref x 72

FEEDBACK DIVIDE SELECT TABLE (MSEL)

Note:

1. Ref = Crystal Frequency.

FOUT = (XTAL x MSEL)

FSEL